Antirattle device for window sash



March 25, 1947. F. w. COMBER 2,417,970

ANTI-BATTLE DEVICE FOR WINDOW SASH Fi led Feb. 27, 1946 ggg . I L g 4% i L 5 i v a;

/ /%fifi a g ATTORNEY Patented Mar. 25, 1947 UNITED STATE S PATENT OFFICE 4 Claims. 1

My invention relates to an anti-rattle device for windows and has for its primary object the provision of a device which will effectively prevent rattling of both the upper and lower sash of a window, will be neat in appearance and will have no projections which will catch or snag the window curtain or other draperies.

-It is a further object of my invention to provide an anti-rattle device for the upper sash of a window which will be automatically moved from engagement with the upper sash on raising of the lower sash, to a position where it will not interfere with complete raising of the lower sash.

It is a further object of my invention to provide an anti-rattle device for windows which will be automatically held in any position in which it is placed and will not itself, when not in use, rattle or swing imposition to interfere with the raising or lowering of the sash.

I accomplish the foregoing objects togethe with such others as may hereinafter appear by means of a construction which I have illustrated in preferred form in the accompanying drawings, wherein Figure 1 is an elevation f a window with upper and lower sash showing my anti-rattle device secured in position on the window frame to prevent rattling of the sash;

Figure 2 is a section taken on the line 22 of Figure 1;

Figure 3 is an enlarged fragmentary view showing my anti-rattle device in engagement with the lower sash;

Figure 4.- is an enlarged fragmentary view showing a cross-section through the anti-rattle device, the'section being taken substantially on the line 4-4 of Figure 3; and

Figure 5 is an enlarged view showing the antirattle device for the upper sash in engagement with such sash.

Referring now to Figures 1 and 2, reference numeral 6 indicates the usual window frame having an upper sash 1 and a lower sash 8. In the usual construction illustrated, the lower sash can beraised or-the upper sash lowered and in either case the lower sash will be on the inner side, i. e., on the side toward the room in which the window is located.

The anti-rattle device for the lower sash is indicated by the reference character A and that for the upper sash by the reference character B. For the sake of illustration, these anti-rattle devices have been shown in somewhat larger size in proportion to the window frame than would be desirable and in actual practice for the usual house window I would prefer to make them substantially of the size illustrated in Figures 3 to 5, i. e. about two and one-half inches long by about one and one-eighth inches wide. It will be understood, however, that the size can be varied to adapt the device to windows of different size.

Referring now to Figures 3 to 5, it will be seen that the anti-rattle devices, both A and B, are of the same general box-like form. The lower sash device A comprises an upper or outer rectangular plate member 9 having a depending flange l0, and the lower or inner plate member I! having an upstanding flange I2 which is adapted to fit telescopically within the flange H! of the upper member 9. These flanges serve to position the two plate members with respect to each other and hold them in proper relative position when the device is mounted on the window frame.

The upper plate member 9 is provided with a slot l3 which slopes with respect to the sash engaging edge !4 of the plate. The lower plate member H i provided with a like slot it which is parallel to and lies directly beneath the slot in the upper plate.

A pin [6, in the form of a wood screw, extends through the slot in the upper and lower plate and engages the window frame. A washer I! is placed between the head of the pin and the upper surface of the plate 9. A washer I8 is located on the under face of the plate 9 and a washer I9 is located n the upper face of plate ll. Spring member 20 surrounds the pin and abuts at its upper end against washer I8 and at its lower end against washer Hi. This spring is under compression and urges the washer l8 and plate 9 against the washer IT and head of the pin 16. It also urges washer l9 and lower plate H into frictional engagement with the window frame. Although I have shown this pin It in the form of a wood screw, it will be understood that any other appropriate form of pin which could be secured to the window frame could be used.

It should be observed that the angle at which the slot slopes with respect to the sash engaging edge of the plates should be such that the plates will be wedged between the sash and the pin when the device is moved downwardly and will remain in such position against any force which may be exerted against the sash by the wind.

The upper sash device B, illustrated in Figure 5, is like that of the lower sash device excepting that the slot I3 and the corresponding slot in the lower member are located at one end of the plates instead of extending diagonally longitudinally thereof. It is to be noted that the slot of the upper sash device B is located at a distance from the sash engaging end M which is reater than the thickness: of the lower sash member 8.

The two devices A and B, except in respects noted above, are identical. It is to be observed that the devices illustrated in Figures 3 and 5 are to be mounted on the left-hand side of the frame to engage the left-hand side of the sash. For the right-hand side of the sash, the slot in the device of Figure 3, for example, would have to slope from the upper right-handcorner to the lower left-hand corner and in the device illustrated in Figure 5 the slot would slope in the same direction.

In Figure 3, lower sash device A is shown in full line position wedged against the lower sash 8. Dot and dash lines indicate the position the device will assume when it is moved from engagement with the sash and by virtue of the frictional engagement of the plates with the pin and the window frame the device will be held in this position when it is not in use and even though the screw I6 should become slightly loosened the device will not rattle or flop about. In Figure 5, the device B is shown in full line in position wedged against the upper window sash i. In the dot and dash line of Figure 5, the device is indicated in the position which it will assume when it is moved upwardly either by hand or because of raising of the lower sash 8. Further upward movement of the lower sash will cause the device B to swing about pin I8 as a pivot and it will be turned to the position indicated in dot and dash line in Figure 2, where it will not interfere with the raising and lowering of the lower sash. Because of this arrangement, it will be impossible to jam the window against the anti-rattle device, damaging the sash or the frames, and by virtue of the fact that both the upper and lower devices B and A, respectively, are frictionally held in position out of engagement with the sash when they are not in use, there would be no accidental contact of either device with any part of the sash upon movement thereof.

The plates 9 and II can be simply and easily manufactured by metal stamping and when mounted on the window frame will present a smooth external surface which will have no parts to catch or snag curtains or draperies.

I am aware that there are devices using the principle of the angularly disposed slot and pin to secure a wedging action against the window sash. However, I do not know of any such devices which have positive provision for frictional engagement of the device with the window frame to hold it in any position of adjustment or in which the device for preventing rattling of the upper sash is automatically removed from engagement therewith on the raising of the lower sash. It is a further difficulty with prior art devices of which I am aware that most of them have parts which would catch or snag curtain or window draperies and after a short period of usage begin to rattle themselves and to fall into such position that they would interfere with the raising and lowering of the sashes.

I claim:

1. An anti-rattle device for windows comprising a member for mounting on a window frame and having an edge adapted to engage the window sash, a slot in said member disposed in sloping relation to said edge, a pin extending through the slot and adapted to be secured to the window frame, said pin having means slidably engaging said member, and resilient means urging said member into frictional engagement with the window frame whereby said member willbe automatically held in any position of adjustment.

2. An anti-rattle device for windows comprising an upper plate member and a lower plate member having cooperating means to position one plate with respect to the other, a slot in the upper plate and a slot in the lower plate, said slots being parallel and disposed in sloping relation to the sash engaging edge of the plates, a pin adapted to be secured to the window frame extending through said slots to hold the device in such position that an edge thereof can be brought into engagement with a window sash, said pin being in slidable engagement with the upper plate, and a spring under compression between said plates whereby the upper plate is urged into frictional engagement with the pin and the lower plate is urged into frictional engagement with the window frame.

3. An anti-rattle device for windows comprising a box-like member having a lid and bottom in telescopic engagement, a slot in the lid and a slot in the bottom, said slots being parallel and disposed in sloping relation to the sash engaging edge of the box, a pin adapted to be secured to the window frame extending through said slots to hold the device in such position that an edge thereof can be brought into engagement with the window sash, said pin being in slidable engagement with the lid, and a spring under compression between the lid and bottom and surrounding said pin, whereby the lid will be held in frictional engagement with the pin and the bottom will be held in frictional engagement with the window frame.

4. An anti-rattle device for the upper sash of a window comprising a rectangular member adapted to be mounted on the window frame with one end portion thereof adapted to engage said upper Window sash, a slot in the opposite end of said rectangular member disposed in angular relation to the sash engaging end and located at a distance from the sash engaging end which is greater than the thickness of the lower sash, a pin adapted to be secured to the window frame extending through said slot, said pin having means slidably engaging said member, and resilient means engaging the pin and the member to hold the latter in frictional engagement with the window frame, said member being adapted to swing upwardly on said pin as a pivot upon raising of the lower sash.

FRANCIS W. COMBER.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS 

